EP 0197651 B1 19890614 - FLUID OPERATED CLUTCH SYSTEM
Title (en)
FLUID OPERATED CLUTCH SYSTEM
Publication
Application
Priority
US 71305485 A 19850318
Abstract (en)
[origin: EP0197651A1] Disclosed is an embodiment of an improved fluid operated clutch system (80) of the normally disengaged type and system (100) of the normally engaged type that both employ a control valve (22) operative to selectively provide a fluid signal from a fluid pressure supply source (24) to a first fluid operated actuator preferably in the form of a piston (9) operative in the case of system (80) to overcome a resilient biasing means (26) and move the clutch to the engaged condition upon receipt by the control valve of an actuating signal normally provided either by depression of a clutch pedal (50) for a standard transmission or by a sensor means (52, 53) for an automatic transmission and in the form of a piston (9A) for system (100) operative to overcome a resilient biasing means (26A) and move the clutch to the disengaged condition. The improvement being characterized by systems (80) and (100) being provided with override means respectively in the form of piston (31, 31A) that are each continuously connected to supply source (24) and are operative to overcome respective resilient biasing means (48, 48A) and, in the case of system (80), move the clutch to the engaged condition when the fluid pressure falls below a predetermined value and, in the case of system (100) move the clutch to the disengaged condition when the fluid pressure falls below a predetermined value.
IPC 1-7
IPC 8 full level
B60W 10/00 (2006.01); B60W 10/02 (2006.01); F16D 25/08 (2006.01); F16D 48/02 (2006.01); F16D 48/04 (2006.01)
CPC (source: EP)
F16D 25/14 (2013.01); F16D 48/02 (2013.01); F16D 48/04 (2013.01); F16D 2048/0254 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0197651 A1 19861015; EP 0197651 B1 19890614; DE 3663985 D1 19890720; JP H0723730 B2 19950315; JP S61218836 A 19860929
DOCDB simple family (application)
EP 86301541 A 19860305; DE 3663985 T 19860305; JP 6045586 A 19860318